Fire tool



Patented Dec. 14, Y1937 UNITED STATES PATENT OFFICE 1 Claim.

(el. 7414.1) Y

(Granted under the act of March 3,1883, as amended April 30, 192.8; 370O. G. 757) This application is made under the act of March 3, 1883, asamended by the act of April 30, 1928, and the invention herein describedand claimed may be manufactured and used by or for the Government forgovernmental purposes without the payment to me Yof any royalty thereon.Y

My invention relates to improvements in fire tools in which anattachment or construction is made on an implement for digging; with theobject of using one tool in fire fighting Work either as an ax or as ashovel, or both. My invention is illustrated in the accompanying drawingin which:

Figure I is a front elevation of a shovel with a cutting bit formedthereon;

Figure II is a detailed perspective View of the cutting edge; and

Figure III is a front elevation, with cutting bits Y detachably mountedon a shovel blade.

Similar numerals refer to similar throughout the several views.

parts By referring to the drawing it will be seen that a shovel I isconstructed with an ax bit 2 formed on the side of its blade 3. This axbit 2 is an integral part of shovel I (Figure I). Ax bit 2 may be hushedin with the front and back surfaces of shovel blade 3, with its cuttingedge protruding therefrom. The ax bit 2 may be of hardened tool steeland have a linear groove 4 (Figure II) formed to be conjugal to LLIshovel blade3 and pass over its heel 5, which linear groove may notextend for the entire length of the ax bit but stop just short of theupper end of the bit whereby one end of the groove is closed by theremaining end portion of the bit and the other end of the grooveY isopen, extending -to the end of the .ax bit. It may be locked there by arivet or pin 6, or by a sprung or tight nt, a clip, welding, brazing, orsuch common means.

It is obvious that the double-bitted ax effect may be procured onshovels by the use of ax bits on both sides of the shovel blade (asshown 5 in Figure III), as well as the single-bit effect (as shown inFigure I), or right and left hand single-bit nre shovels may be made.

In Vthe case of the single-bit iire shovel (Figure I), the dynamicbalance is slightly in favor 10 of the cutting operation, but of nomaterial hindrance to lire shovelling in view of the advantages of thecombination of operations this tool facilitates. However, to assist inhandling a this tool, I prefer that the handle 1 may be 10 Octagon, orsuch controlling shape, for gripping.

I do not limit myselfV to any particular type of Vshovel or spade,shovel blade, shovel handle, or to their equivalent, or to anyparticular shape, size or Weight of cutting bit 2, or any particular 20form of construction of this combination. v

Having thus fully described my invention, what 'I claim for LettersPatent is:

An attachment for a shovel blade, an ax bit r having a cutting edgerigidly and removably at- 2" cached to the extreme upper portion of saidblade and extending laterally therefrom, said ax bit having a lineargroove in its edge opposite the cutting edge and extending from thelower n end of the ax bit to a point just short of the 00 upper end ofthe bit, said groove being adapted to receive the upper portion of theshovel blade, the ax bit extending slightly above the shovel blade andthe shovel blade and the ax bit havr ing apertures in alignment witheach other 3 through their thicknessesV adapted to receive a securingmember.

OTTO HENRY SCHOENBERGER.

